Which is the only source of NADPH in red blood cells?

Options :
  1. Glycolysis
  2. Pentose phosphate pathway
  3. Oxidative phosphorylation
  4. Citric acid cycle

Answer and Explanation :-

Answer: Option 2


The oxidative phase of the pentose phosphate pathway is a major source of NADPH in cells, and in cells without mitochondria (such as red blood cells), it is the only source.

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